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Title: Performance of an optical readout GEM-based TPC
Authors: Margato, L. M. S. 
Fraga, F. A. F. 
Fetal, S. T. G. 
Fraga, M. M. F. R. 
Balau, E. F. S. 
Blanco, A. 
Marques, R. Ferreira 
Policarpo, A. J. P. L 
Keywords: GEM detectors; Scintillation; Optical readout; Time projection chamber; Neutron spectrometry
Issue Date: 2004
Citation: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 535:1-2 (2004) 231-235
Abstract: We report on the operation of a GEM-based small TPC using an optical readout. The detector was operated with a mixture of Ar+CF4 using 5.48 MeV alpha particles obtained from a 241Am source and the GEM scintillation was concurrently read by a CCD camera and a photomultiplier. Precision collimators were used to define the track orientation. Qualitative results on the accuracy of the track angle, length and charge deposition measurements are presented.
DOI: 10.1016/S0168-9002(04)01609-2
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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